TFP591
Page 3 of 4
the face of the fitting to the outside of
the protected area may be determined
by interpolating between the indicated
values.
NOTE: The temperature within the
protected area must be based on
the lowest expected temperature.
For example: a freezer may be rated
at -20°F (-29°C), yet the condenser is
emitting -30°F (-35°C). The dry sprin-
kler length must be calculated based
on the lower temperature of -30°F
(-35°C).
Sprinkler Fitting
TFP Dry Type Sprinklers must be
installed in the 1 in. NPT outlet or run
of a malleable or cast iron threaded tee
as described in the applicable technical
data sheets. With reference to Figure
4 and in conjunction with use in a wet
pipe system, the sprinkler drop may be
installed as shown. The information in
Figure 4 may only be used where the
sprinkler fitting and water filled pipe
above the sprinkler fitting is not subject
to freezing. In areas subject to freez-
ing, the pipe connected to the dry type
sprinkler must be configured to allow
complete drainage as shown in Figure
5.
Installation
The TYCO Model DSB-2 must be
installed in accordance with this
section.
WARNING
The Adhesive contains cyanoacrylate
ester. Irritation will occur when inhaled.
This adhesive bonds skin in seconds.
Contact through clothing may cause
burns. EYE IRRITANT.
Always refer to the Material Safety Data
Sheet for additional adhesive handling
recommendations. The Material Safety
Data Sheet should be obtained from
the adhesive manufacturer via their
web site noted on the adhesive con-
tainer label before using the adhesive.
In case of skin contact, flush with
water, and for eye contact seek medical
attention.
Provide adequate ventilation in area
of usage. When possible ventilation
should be achieved by the use of local
exhaust ventilation and good general
ventilation. Vapors are heavier than air,
therefore, downward ventilation should
be used. When handling cyanoacrylate
adhesives, goggles or safety glasses
should always be worn. Polyethylene
gloves should be used to protect the
hands.
HEATED
AREA
DSB-2
SIDE
OUTLET
PLUGGED
TO WET
SYSTEM
(SEE DESIGN
CRITERIA
SECTION)
FITTING
SPRINKLER
DSB-2
DRY
SYSTEM
RUN
OUTLET
PLUGGED
FITTING
(SEE DESIGN
CRITERIA
SECTION)
SPRINKLER
AREA
SUBJECT
TO
FREEZING
TFP
DRY TYPE
SPRINKLER
EXPOSURE LENGTH
(SEE DESIGN CRITERIA
SECTION)
DSB-2
SPRINKLER
FITTING
HEATED
AREA
FREEZER
AREA
FIGURE 3
EXPOSURE LENGTH
FIGURE 4
SPRINKLER FITTING IN HEATED AREA
FIGURE 5
SPRINKLER FITTING IN UNHEATED AREA
